William h



(No Model.) 7 W. H. WOODARD.

WEATHER. STRIP.

No. 390,637. Patented Oct. 2, 1888.

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UNITED STATES PATENT Orrin \VILLl'AllI H. IVOODARD, OF SIOUX CITY, IOWA, ASSIGNOR OF ONE'HALF TO FRED J. HANSEN, OF SAME PLACE.

WEATHER-STRIP.

SPECIFICATION forming part of Letters Patent No. 390,637, dated October 2, 1888.

Application filed May 7', 1888. Serial No.273,018. (N model.)

To all whom it may concern: l II. In service this packing, properly propor- Be it known that 1, WILLIAM H. WooDARD, i tioned to its surroundings. will offer sufficient a citizen of the United States, residing at l friction byits whole length bearing on thebead Sioux City, in the county of Woodbury and toholdthesash suspended atanypointtowhich 55 State of Iowa, have invented certain new and useful Improvements in Weather-Strips; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use thesame.

This invention relates to that class of weather-strips which are used to close the joints between window-sashes and the frames in which they are fitted to slide against the entrance of cold air, dust, 850.; and its object is to permit the sash to be fitted so loosely in its frame that it will slide therein with perfect freedom, even when it becomes swelled in wet weather, and yet to prevent the passage of air and dust, and to hold the sash raised without offering any material resistance to the act of raising it.

To this end my invention consists in the construction and combination of parts forming the weather-strip and dust-guard, hereinafter described and claimed, reference being had to the accompanying drawings, in which- Figure I is a front elevation of a windowsash and a portion of the jamb,showing my invention. Fig. II is atransverse section of one rail of the sash and a portion of the adjacent jamb,showing my invention; and'FigIII shows a modification of the same.

Number 5 represents the sash, 6 the side jambs, and 7 the sill of the frame, in which the sash is here shown as fitted to slide vertically.

8 is an elastic cord or packing, and 9 an M- shaped sheet-metal bead, preferably of zinc.

In the two side edges ofthe sash I cutgrooves, each shaped to receive both the packingSand the head 9. The bead may be secured to the jamb in any usual way, such as by entering thin grooves, as shown in Fig. II, or by being lightly nailed at its ends, as in Fig. I. In each case I prefer to support the bead wholly upon its edges, leaving its middle portion, 10, free to spring out and in. The cord or packing 8 should be somewhat elastic, so that it will yield to pressure and conform to the grooves in the sash and the head so closely as to exclude both air and dust when half buried in the bead and half in the sash, as shown in Fig.

it may be raised, and yet the anti-frictional nature of the zinc bead permits the sash to be started with very little effort to move up or down. Any considerable pressure in the center of the groove in the bead springs it backward at that point and tips the sides inward, thus pinching upon the packing all around its projecting portion with about equal pressure.

I account for the ease with which the sash may be moved either way against an amount of friction which securely holds it when at rest on the principle of a series of braces or pawls attached to the sash with their ends to drag against the bead, these braces being represented in the elastic character of the packing. When the sash'is moved either way, the friction of the packing on the bead drags the particles of the packing backward, and thereby compresses them toward the sash, leaving the sash to move with freedom. Then when the sash is stopped the particles, being released from the rubbing action, spring outward and hold the sash. The elasticity of the packing and of the rib have a joint action in counteracting the effect of the sash being swelled in wet weather. The sash is so loosely fitted in the frame that its swelling never causes it to fill the frame and become tight. In fact, the usual wooden head between sashes and the strips at the front and rear faces of the sash generally used to form the groove for the sash to slide in may be dispensed with if the bead is securely fastened so as to form a guideway for the sash. Part of the advantages of my invention may be obtained by using my elastic sheet-metal bead 9 in combination with a sash grooved to receive it and a central rib of the sash left projecting to enter the groove in the head, as shown at 12, Fig. III. In that case the width of the rib 12 at its base should be a little less than the corresponding width of the groove in the bead, in order that the sides of the bead may spring inward to compensate for pressure in the bottom of the groove when the sash swells. The cord or packing may serve in the same manner to the extent required, in combination with the head at the top and bottom joints of the sashes, to closethe joints; but as the bead projecting above the windowsill would sometimes be objectionable the cord may there have only a shallow groove in the sash and project enough below to serve as a packing for the joint. The cord in Fig. II provides the sash with a rib corresponding to the rib 12 in Fig. III.

The cord or packing used without the head 9, I do not suppose to be new, and I do not claim it.

Having thus fully described my invention, what I desire to secure by Letters Patentis the following:

1. The combination of the M shaped sheetmetal bead 9, a window-frame supporting the bead, and a sash fitted to slide loosely in the frame' and grooved in its edge to receive the bead and provided with a rib in this groove to fit the groove in the said head, substantially as shown and described.

2. The combination of a window-frame, an M-shaped sheet-metal bead resting its edges on the frame and free to spring midway, and a sash grooved to receive the bead,and provided with a rib in its groove to bear in said midway portion of -the bead, substantially as shown and described.

3. The combination of a windowframe, an M shaped sheet metal bead secured to the frame with its edges resting thereon and its midway portion free to spring, an elasticpacking-cord adapted to behalfburied in thegroove in the said bead, and a sash grooved to receive the said head and the other half of the cord, substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

XVILLIAM I-I. \VOODARD.

\Vitnesses:

W. A. DEAN, G. W. MATTIsoN. 

